/* 码小匠官网设计系统：深色科技实验室氛围 + 明亮教育内容区。 */
:root {
    --navy-950: #05091a;
    --navy-900: #071126;
    --navy-850: #0a1731;
    --navy-800: #0e1d3b;
    --ink: #101a35;
    --ink-soft: #34415f;
    --muted: #69758f;
    --line: #dce3f0;
    --line-dark: rgba(144, 173, 235, .17);
    --surface: #ffffff;
    --surface-soft: #f4f7fc;
    --surface-blue: #edf2ff;
    --brand: #1f45fc;
    --blue: #4f72ff;
    --cyan: #42e8ff;
    --violet: #8b6cff;
    --lime: #b9f75c;
    --yellow: #ffd76a;
    --coral: #ff8f70;
    --white: #fff;
    --radius-sm: 14px;
    --radius: 22px;
    --radius-lg: 32px;
    --container: 1200px;
    --header-height: 78px;
    --shadow-sm: 0 12px 30px rgba(29, 44, 85, .08);
    --shadow: 0 24px 70px rgba(29, 44, 85, .13);
    --shadow-dark: 0 35px 90px rgba(0, 4, 19, .42);
    --ease: cubic-bezier(.2, .75, .2, 1);
}

/* 资讯分类与分页采用同一组轻量组件，避免页面模板重复内联样式。 */
.category-nav,
.pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 0 0 32px;
}

.category-nav a,
.pagination a,
.pagination span {
    padding: 9px 14px;
    border: 1px solid var(--line, #dfe5ec);
    border-radius: 999px;
}

.category-nav a[aria-current="page"] {
    color: #fff;
    background: var(--primary, #3156d8);
    border-color: transparent;
}

.form-context {
    padding: 10px 14px;
    border-radius: 10px;
    background: #f3f6ff;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--navy-950);
}

body {
    margin: 0;
    overflow-x: hidden;
    color: var(--ink);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
    background: var(--surface);
    line-height: 1.65;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body.nav-open {
    overflow: hidden;
}

::selection {
    color: #fff;
    background: var(--brand);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

button,
input,
textarea,
select {
    font: inherit;
}

:where(a, button, input, textarea, select):focus-visible {
    outline: 3px solid var(--cyan);
    outline-offset: 3px;
}

.container {
    width: min(var(--container), calc(100% - 48px));
    margin-inline: auto;
}

.narrow {
    width: min(840px, 100%);
}

.skip-link {
    position: fixed;
    z-index: 999;
    top: 10px;
    left: 10px;
    padding: 10px 16px;
    color: var(--ink);
    background: #fff;
    border-radius: 10px;
    transform: translateY(-160%);
    transition: transform .2s ease;
}

.skip-link:focus {
    transform: translateY(0);
}

/* 公共导航 */
.site-header {
    position: sticky;
    z-index: 80;
    top: 0;
    height: var(--header-height);
    color: #fff;
    background: rgba(5, 9, 26, .87);
    border-bottom: 1px solid rgba(152, 181, 255, .12);
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.site-header::after {
    position: absolute;
    right: 0;
    bottom: -1px;
    left: 0;
    height: 1px;
    content: "";
    opacity: 0;
    background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
    transition: opacity .3s ease;
}

.site-header.is-scrolled {
    background: rgba(5, 9, 26, .95);
    border-color: rgba(152, 181, 255, .2);
    box-shadow: 0 14px 45px rgba(0, 5, 24, .28);
}

.site-header.is-scrolled::after {
    opacity: .48;
}

.nav-wrap {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 22px;
}

.brand {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 11px;
}

.brand img {
    width: 110px;
    height: 44px;
    object-fit: contain;
}

.brand-lab {
    padding: 5px 7px 4px;
    color: #a9b9db;
    border: 1px solid rgba(136, 166, 229, .23);
    border-radius: 6px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 8px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: .12em;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
}

.site-nav a {
    position: relative;
    padding: 10px 12px;
    color: #bdc8df;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 650;
    white-space: nowrap;
    transition: color .22s ease, background .22s ease;
}

.site-nav a::after {
    position: absolute;
    right: 13px;
    bottom: 5px;
    left: 13px;
    height: 2px;
    content: "";
    background: linear-gradient(90deg, var(--cyan), var(--violet));
    border-radius: 3px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s var(--ease);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
    color: #fff;
    background: rgba(255, 255, 255, .055);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
    transform: scaleX(1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 9px;
}

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    min-height: 44px;
    padding: 0 12px;
    color: #fff;
    border: 1px solid rgba(145, 171, 229, .27);
    border-radius: 12px;
    background: rgba(255, 255, 255, .06);
    cursor: pointer;
}

.nav-toggle-label {
    margin-right: 8px;
    font-size: 12px;
    font-weight: 700;
}

.nav-toggle-icon {
    display: grid;
    width: 18px;
    gap: 5px;
}

.nav-toggle-icon i {
    display: block;
    width: 18px;
    height: 1px;
    background: currentColor;
    transition: transform .25s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon i:first-child {
    transform: translateY(3px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon i:last-child {
    transform: translateY(-3px) rotate(-45deg);
}

/* 按钮 */
.btn {
    position: relative;
    display: inline-flex;
    overflow: hidden;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    gap: 9px;
    color: var(--ink);
    border: 1px solid transparent;
    border-radius: 12px;
    background: transparent;
    font-weight: 750;
    line-height: 1;
    cursor: pointer;
    transition: color .22s ease, background .22s ease, border-color .22s ease, box-shadow .22s ease, transform .22s var(--ease);
}

.btn:hover {
    transform: translateY(-3px);
}

.btn span {
    transition: transform .22s ease;
}

.btn:hover > span:last-child {
    transform: translate(2px, -1px);
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #2854ff, #1536df);
    box-shadow: 0 12px 34px rgba(31, 69, 252, .29), inset 0 1px 0 rgba(255, 255, 255, .25);
}

.btn-primary:hover {
    box-shadow: 0 18px 40px rgba(31, 69, 252, .39), inset 0 1px 0 rgba(255, 255, 255, .28);
}

.btn-glow::before {
    position: absolute;
    top: -70%;
    left: -45%;
    width: 28%;
    height: 240%;
    content: "";
    opacity: .5;
    background: linear-gradient(90deg, transparent, #fff, transparent);
    transform: rotate(24deg) translateX(-190%);
    transition: transform .65s var(--ease);
}

.btn-glow:hover::before {
    transform: rotate(24deg) translateX(720%);
}

.btn-ghost {
    color: #d9e2f6;
    border-color: rgba(155, 180, 232, .27);
    background: rgba(255, 255, 255, .045);
}

.btn-ghost:hover {
    color: #fff;
    border-color: rgba(82, 232, 255, .48);
    background: rgba(82, 232, 255, .08);
}

.btn-light {
    color: var(--brand);
    border-color: #d9e1f3;
    background: #fff;
    box-shadow: var(--shadow-sm);
}

.btn-white {
    color: var(--navy-900);
    background: #fff;
    box-shadow: 0 15px 40px rgba(0, 6, 29, .25);
}

.btn-outline-white {
    color: #fff;
    border-color: rgba(255, 255, 255, .4);
    background: rgba(255, 255, 255, .04);
}

.btn-dark-glass {
    color: #eef5ff;
    border-color: rgba(158, 186, 244, .24);
    background: rgba(255, 255, 255, .055);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
    backdrop-filter: blur(12px);
}

.btn-dark-glass:hover {
    border-color: rgba(82, 232, 255, .48);
    background: rgba(82, 232, 255, .08);
}

.btn-lg {
    min-height: 54px;
    padding: 0 27px;
    border-radius: 15px;
}

.button-signal {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 0 5px rgba(185, 247, 92, .09), 0 0 16px rgba(185, 247, 92, .55);
}

/* 首页首屏 */
.hero-lab {
    --pointer-x: 50%;
    --pointer-y: 45%;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    min-height: calc(100svh - var(--header-height));
    padding: 84px 0 92px;
    color: #fff;
    background:
        radial-gradient(circle at var(--pointer-x) var(--pointer-y), rgba(66, 232, 255, .105), transparent 22%),
        linear-gradient(145deg, #05091a 0%, #071126 54%, #0a1630 100%);
    contain: paint;
}

.hero-lab::after {
    position: absolute;
    z-index: -1;
    right: -8%;
    bottom: -33%;
    width: 62vw;
    height: 62vw;
    content: "";
    opacity: .34;
    border: 1px solid rgba(102, 130, 255, .18);
    border-radius: 50%;
    box-shadow: inset 0 0 90px rgba(78, 77, 255, .09), 0 0 120px rgba(36, 90, 255, .1);
}

.hero-grid-lines,
.learning-grid-lines {
    position: absolute;
    z-index: -2;
    inset: 0;
    opacity: .18;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(139, 169, 231, .25) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 169, 231, .25) 1px, transparent 1px);
    background-size: 56px 56px;
    -webkit-mask-image: radial-gradient(circle at 72% 48%, #000 5%, transparent 72%);
    mask-image: radial-gradient(circle at 72% 48%, #000 5%, transparent 72%);
}

.hero-grid-lines::after {
    position: absolute;
    inset: 0;
    content: "";
    background-image: radial-gradient(circle, rgba(111, 223, 255, .75) 1px, transparent 1.5px);
    background-size: 112px 112px;
}

.hero-aurora {
    position: absolute;
    z-index: -1;
    width: 420px;
    height: 420px;
    opacity: .16;
    border-radius: 50%;
    filter: blur(70px);
    pointer-events: none;
    will-change: transform;
}

.hero-aurora-a {
    top: -180px;
    left: 18%;
    background: var(--violet);
    animation: aurora-drift-a 12s ease-in-out infinite alternate;
}

.hero-aurora-b {
    right: 2%;
    bottom: -210px;
    background: var(--cyan);
    animation: aurora-drift-b 14s ease-in-out infinite alternate;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, .94fr) minmax(500px, 1.06fr);
    align-items: center;
    gap: clamp(52px, 6vw, 92px);
}

.hero-copy {
    position: relative;
    z-index: 3;
}

.lab-kicker {
    display: inline-flex;
    align-items: center;
    margin-bottom: 24px;
    padding: 8px 11px;
    gap: 8px;
    color: #afbdd8;
    border: 1px solid rgba(132, 165, 229, .21);
    border-radius: 9px;
    background: rgba(255, 255, 255, .035);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 10px;
    letter-spacing: .09em;
}

.lab-kicker b {
    color: #e6edff;
    font-size: inherit;
}

.lab-kicker > i {
    width: 1px;
    height: 11px;
    background: rgba(169, 189, 228, .3);
}

.lab-pulse {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 0 4px rgba(185, 247, 92, .08), 0 0 13px rgba(185, 247, 92, .7);
    animation: status-pulse 2.2s ease-in-out infinite;
}

.hero h1 {
    max-width: 690px;
    margin: 0;
    color: #f8fbff;
    font-size: clamp(50px, 5.2vw, 78px);
    font-weight: 900;
    line-height: 1.07;
    letter-spacing: -.055em;
    text-wrap: balance;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
    .hero h1 {
        color: transparent;
        background: linear-gradient(125deg, #fff 12%, #dbe5ff 45%, #86edff 76%, #a995ff 100%);
        -webkit-background-clip: text;
        background-clip: text;
    }
}

.hero-lead {
    max-width: 630px;
    margin: 24px 0 0;
    color: #aebbd2;
    font-size: 18px;
    line-height: 1.85;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 13px;
    margin-top: 31px;
}

.hero-proof {
    display: grid;
    max-width: 625px;
    margin-top: 38px;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid rgba(145, 173, 227, .17);
}

.hero-proof > span {
    display: grid;
    position: relative;
    padding: 20px 16px 0 0;
    grid-template-columns: 30px 1fr;
    gap: 2px 9px;
}

.hero-proof > span + span {
    padding-left: 19px;
    border-left: 1px solid rgba(145, 173, 227, .14);
}

.hero-proof i {
    color: var(--cyan);
    grid-row: span 2;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 11px;
    font-style: normal;
    letter-spacing: .08em;
}

.hero-proof b {
    color: #eef4ff;
    font-size: 14px;
}

.hero-proof small {
    color: #71809f;
    font-size: 11px;
}

/* 首屏创作实验舱 */
.hero-stage {
    position: relative;
    z-index: 2;
    min-width: 0;
    padding: 28px 10px 36px 22px;
    perspective: 1200px;
}

.stage-shadow {
    position: absolute;
    z-index: -1;
    right: 2%;
    bottom: 1%;
    left: 7%;
    height: 45%;
    opacity: .75;
    background: #020514;
    border-radius: 50%;
    filter: blur(36px);
    transform: rotate(4deg);
}

[data-tilt] {
    --tilt-x: 0deg;
    --tilt-y: 0deg;
    transform: perspective(1100px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y));
    transform-style: preserve-3d;
    transition: transform .28s var(--ease), box-shadow .28s ease, border-color .28s ease;
}

[data-tilt].is-tilting {
    transition: box-shadow .22s ease, border-color .22s ease;
    will-change: transform;
}

.stage-window {
    position: relative;
    overflow: hidden;
    min-height: 455px;
    border: 1px solid rgba(140, 175, 244, .25);
    border-radius: 25px;
    background: rgba(8, 18, 42, .88);
    box-shadow: var(--shadow-dark), inset 0 1px 0 rgba(255, 255, 255, .08), 0 0 0 8px rgba(80, 112, 255, .025);
    backdrop-filter: blur(18px);
}

.stage-window::before {
    position: absolute;
    z-index: 3;
    inset: 0;
    content: "";
    pointer-events: none;
    background: linear-gradient(118deg, rgba(255, 255, 255, .06), transparent 25%, transparent 72%, rgba(66, 232, 255, .035));
}

.stage-topbar {
    display: grid;
    position: relative;
    z-index: 4;
    align-items: center;
    height: 48px;
    padding: 0 15px;
    color: #647495;
    border-bottom: 1px solid rgba(137, 165, 222, .15);
    background: rgba(255, 255, 255, .025);
    grid-template-columns: 1fr auto 1fr;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 9px;
    letter-spacing: .07em;
}

.stage-dots {
    display: flex;
    gap: 6px;
}

.stage-dots i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--coral);
}

.stage-dots i:nth-child(2) {
    background: var(--yellow);
}

.stage-dots i:nth-child(3) {
    background: var(--lime);
}

.stage-title {
    color: #8290ac;
}

.stage-online {
    justify-self: end;
    color: #95a4c0;
}

.stage-online i {
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 6px;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 12px rgba(185, 247, 92, .7);
}

.stage-body {
    display: grid;
    min-height: 407px;
    grid-template-columns: 48px minmax(0, 1fr) 158px;
}

.stage-rail {
    display: flex;
    align-items: center;
    padding: 14px 0;
    gap: 14px;
    border-right: 1px solid rgba(137, 165, 222, .12);
    flex-direction: column;
}

.stage-rail i {
    display: grid;
    width: 28px;
    height: 28px;
    place-items: center;
    color: #556584;
    border-radius: 8px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 9px;
    font-style: normal;
}

.stage-rail .is-active {
    color: var(--cyan);
    border: 1px solid rgba(66, 232, 255, .2);
    background: rgba(66, 232, 255, .08);
    box-shadow: 0 0 20px rgba(66, 232, 255, .08);
}

.stage-workspace {
    position: relative;
    overflow: hidden;
    min-width: 0;
    background:
        radial-gradient(circle at 50% 36%, rgba(49, 92, 255, .15), transparent 42%),
        linear-gradient(rgba(124, 154, 214, .055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124, 154, 214, .055) 1px, transparent 1px);
    background-size: auto, 24px 24px, 24px 24px;
}

.workspace-label {
    display: flex;
    position: absolute;
    z-index: 3;
    top: 15px;
    right: 16px;
    left: 16px;
    align-items: center;
    justify-content: space-between;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 8px;
    letter-spacing: .12em;
}

.workspace-label span {
    color: #687896;
}

.workspace-label b {
    color: var(--cyan);
    font-size: 8px;
}

.orbit-system {
    position: absolute;
    top: 44px;
    left: 50%;
    width: 245px;
    height: 245px;
    transform: translateX(-50%);
}

.orbit {
    position: absolute;
    border: 1px solid rgba(108, 145, 226, .24);
    border-radius: 50%;
}

.orbit::after {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 3px;
    height: 3px;
    content: "";
    border-radius: 50%;
    background: rgba(66, 232, 255, .5);
    box-shadow: 0 0 18px rgba(66, 232, 255, .8);
}

.orbit-one {
    inset: 29px;
    animation: orbit-spin 16s linear infinite;
}

.orbit-two {
    inset: 0;
    border-style: dashed;
    animation: orbit-spin-reverse 24s linear infinite;
}

.orbit i {
    position: absolute;
    width: 8px;
    height: 8px;
    border: 2px solid var(--cyan);
    border-radius: 50%;
    background: var(--navy-850);
    box-shadow: 0 0 18px rgba(66, 232, 255, .55);
}

.orbit-one i:first-child {
    top: 12%;
    right: 10%;
}

.orbit-one i:last-child {
    bottom: 5%;
    left: 21%;
    border-color: var(--violet);
}

.orbit-two i:first-child {
    top: -4px;
    left: 48%;
}

.orbit-two i:nth-child(2) {
    right: 5%;
    bottom: 22%;
    border-color: var(--lime);
}

.orbit-two i:last-child {
    bottom: 16%;
    left: 5%;
    border-color: var(--violet);
}

.orbit-core {
    display: grid;
    position: absolute;
    z-index: 2;
    top: 50%;
    left: 50%;
    width: 91px;
    height: 91px;
    place-items: center;
    align-content: center;
    color: #fff;
    border: 1px solid rgba(120, 158, 244, .34);
    border-radius: 31px;
    background: linear-gradient(145deg, rgba(42, 80, 220, .82), rgba(83, 56, 180, .72));
    box-shadow: 0 0 0 9px rgba(69, 99, 224, .08), 0 18px 42px rgba(5, 9, 38, .5), inset 0 1px 0 rgba(255, 255, 255, .25);
    transform: translate(-50%, -50%) rotate(45deg);
}

.orbit-core b,
.orbit-core small {
    transform: rotate(-45deg);
}

.orbit-core b {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 21px;
    line-height: 1;
    letter-spacing: .05em;
}

.orbit-core small {
    margin-top: -10px;
    color: #b8c7ff;
    font-size: 7px;
    letter-spacing: .16em;
}

.orbit-tag {
    position: absolute;
    z-index: 4;
    padding: 4px 7px;
    color: #c6d1e6;
    border: 1px solid rgba(137, 166, 228, .18);
    border-radius: 6px;
    background: rgba(8, 18, 42, .83);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 7px;
    letter-spacing: .08em;
    box-shadow: 0 8px 20px rgba(0, 4, 24, .2);
}

.tag-scratch {
    top: 21px;
    left: -7px;
}

.tag-python {
    top: 92px;
    right: -12px;
}

.tag-cpp {
    bottom: 13px;
    left: 13px;
}

.mini-terminal {
    display: grid;
    position: absolute;
    z-index: 5;
    right: 15px;
    bottom: 15px;
    left: 15px;
    padding: 10px 12px;
    gap: 4px;
    color: #7889a9;
    border: 1px solid rgba(137, 165, 222, .14);
    border-radius: 10px;
    background: rgba(3, 8, 24, .74);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 8px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .03);
}

.mini-terminal span {
    white-space: nowrap;
}

.mini-terminal i {
    margin-right: 8px;
    color: #40506f;
    font-style: normal;
}

.mini-terminal b {
    color: var(--cyan);
    font-weight: 600;
}

.mini-terminal em {
    display: inline-block;
    width: 5px;
    height: 10px;
    margin-left: 3px;
    vertical-align: middle;
    background: var(--lime);
    animation: cursor-blink 1s steps(1) infinite;
}

.stage-status {
    position: relative;
    z-index: 2;
    padding: 16px 13px;
    border-left: 1px solid rgba(137, 165, 222, .12);
    background: rgba(255, 255, 255, .016);
}

.status-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #71809f;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 7px;
    letter-spacing: .08em;
}

.status-head i {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 10px var(--cyan);
}

.status-ring {
    display: grid;
    width: 87px;
    height: 87px;
    margin: 28px auto 23px;
    place-items: center;
    align-content: center;
    border: 1px dashed rgba(98, 133, 214, .32);
    border-radius: 50%;
    box-shadow: inset 0 0 25px rgba(39, 82, 233, .08), 0 0 30px rgba(34, 89, 245, .05);
}

.status-ring b {
    color: var(--cyan);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 19px;
}

.status-ring span {
    color: #7183a4;
    font-size: 8px;
}

.stage-status ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.stage-status li {
    display: grid;
    align-items: center;
    padding: 10px 0;
    color: #8d9ab4;
    border-top: 1px solid rgba(137, 165, 222, .1);
    grid-template-columns: 8px 1fr auto;
    gap: 6px;
    font-size: 8px;
}

.stage-status li i {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--lime);
}

.stage-status li b {
    color: #7385a6;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 6px;
}

.stage-scan {
    position: absolute;
    z-index: 5;
    top: -20%;
    right: 0;
    left: 0;
    height: 75px;
    opacity: .13;
    pointer-events: none;
    background: linear-gradient(180deg, transparent, var(--cyan), transparent);
    animation: stage-scan 7s linear infinite;
}

.stage-float {
    position: absolute;
    z-index: 8;
    padding: 11px 14px;
    color: #dce7fa;
    border: 1px solid rgba(133, 170, 239, .22);
    border-radius: 13px;
    background: rgba(10, 22, 49, .88);
    box-shadow: 0 18px 45px rgba(0, 4, 22, .32), inset 0 1px 0 rgba(255, 255, 255, .07);
    backdrop-filter: blur(12px);
    animation: soft-float 5.5s ease-in-out infinite;
}

.stage-float span,
.stage-float b {
    display: block;
}

.stage-float span {
    font-size: 11px;
    font-weight: 750;
}

.stage-float b {
    margin-top: 2px;
    color: var(--cyan);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 7px;
    letter-spacing: .08em;
}

.stage-float-a {
    top: 0;
    left: -12px;
}

.stage-float-a i {
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 5px;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 12px rgba(185, 247, 92, .65);
}

.stage-float-b {
    right: -14px;
    bottom: 6px;
    animation-delay: -2.4s;
}

.stage-float-b span {
    color: #7385a6;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 7px;
}

.stage-float-b b {
    color: #fff;
    font-family: inherit;
    font-size: 11px;
}

/* 技术信号带 */
.signal-strip {
    position: relative;
    overflow: hidden;
    color: #8f9db8;
    border-top: 1px solid rgba(133, 166, 231, .12);
    border-bottom: 1px solid rgba(133, 166, 231, .12);
    background: #08112a;
}

.signal-strip::before,
.signal-strip::after {
    position: absolute;
    z-index: 2;
    top: 0;
    bottom: 0;
    width: 12vw;
    content: "";
    pointer-events: none;
}

.signal-strip::before {
    left: 0;
    background: linear-gradient(90deg, #08112a, transparent);
}

.signal-strip::after {
    right: 0;
    background: linear-gradient(-90deg, #08112a, transparent);
}

.signal-track {
    display: flex;
    width: max-content;
    align-items: center;
    min-height: 59px;
    gap: 25px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 10px;
    font-weight: 750;
    letter-spacing: .08em;
    animation: signal-scroll 34s linear infinite;
}

.signal-track span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.signal-track span i {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 12px rgba(66, 232, 255, .55);
}

.signal-track b {
    color: #2e3e61;
    font-size: 16px;
}

/* 通用区块与标题 */
.section {
    position: relative;
    padding: 112px 0;
}

.section-soft {
    background:
        radial-gradient(circle at 12% 18%, rgba(49, 86, 255, .055), transparent 23%),
        radial-gradient(circle at 91% 82%, rgba(66, 232, 255, .065), transparent 22%),
        var(--surface-soft);
}

.section-head {
    max-width: 820px;
    margin-bottom: 48px;
}

.section-head-tech {
    position: relative;
    padding-left: 28px;
}

.section-head-tech::before {
    position: absolute;
    top: 4px;
    bottom: 6px;
    left: 0;
    width: 3px;
    content: "";
    background: linear-gradient(180deg, var(--cyan), var(--brand), transparent);
    border-radius: 3px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    margin-bottom: 16px;
    gap: 8px;
    color: var(--brand);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 11px;
    font-weight: 850;
    letter-spacing: .12em;
}

.eyebrow > i {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 2px;
    background: currentColor;
    box-shadow: 0 0 0 4px rgba(31, 69, 252, .08);
    transform: rotate(45deg);
}

.eyebrow.light {
    color: var(--cyan);
}

.section-head h2,
.learning-copy h2,
.cta-copy h2 {
    margin: 0;
    color: var(--ink);
    font-size: clamp(38px, 4.5vw, 58px);
    font-weight: 860;
    line-height: 1.15;
    letter-spacing: -.045em;
    text-wrap: balance;
}

.section-head p {
    max-width: 730px;
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 17px;
}

.section-head.split {
    display: flex;
    max-width: none;
    align-items: flex-end;
    justify-content: space-between;
    gap: 42px;
}

.section-head.split > div {
    max-width: 800px;
}

.text-link {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    padding: 10px 0;
    gap: 8px;
    color: var(--brand);
    border-bottom: 1px solid rgba(31, 69, 252, .25);
    font-weight: 800;
    transition: gap .2s ease, border-color .2s ease;
}

.text-link:hover {
    gap: 13px;
    border-color: var(--brand);
}

/* CMS Banner */
.banner-section {
    padding: 48px 0 22px;
    background: #fff;
}

.banner-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    color: var(--muted);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 10px;
    letter-spacing: .09em;
}

.banner-heading > span {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--ink-soft);
    font-weight: 800;
}

.banner-heading i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 0 4px rgba(31, 69, 252, .08);
}

.banner-track {
    display: flex;
    overflow-x: auto;
    padding: 2px 2px 18px;
    gap: 18px;
    cursor: grab;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: #c8d2e6 transparent;
}

.banner-track.is-dragging {
    cursor: grabbing;
    user-select: none;
    scroll-snap-type: none;
}

.banner-card {
    position: relative;
    overflow: hidden;
    min-width: min(78%, 910px);
    border: 1px solid rgba(27, 46, 89, .12);
    border-radius: 25px;
    background: var(--navy-900);
    box-shadow: var(--shadow-sm);
    scroll-snap-align: start;
}

.banner-card img {
    width: 100%;
    aspect-ratio: 3 / 1;
    object-fit: cover;
    transition: transform .65s var(--ease), filter .45s ease;
}

.banner-card:hover img {
    filter: saturate(1.08);
    transform: scale(1.025);
}

.banner-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(4, 9, 27, .68), transparent 64%), linear-gradient(0deg, rgba(4, 9, 27, .4), transparent 50%);
}

.banner-label {
    display: grid;
    position: absolute;
    right: 24px;
    bottom: 22px;
    left: 24px;
    color: #fff;
    grid-template-columns: 1fr auto;
}

.banner-label small {
    color: var(--cyan);
    grid-column: 1 / -1;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 8px;
    letter-spacing: .12em;
}

.banner-label b {
    margin-top: 2px;
    font-size: 20px;
}

.banner-label i {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, .28);
    border-radius: 50%;
    background: rgba(255, 255, 255, .12);
    font-style: normal;
    backdrop-filter: blur(8px);
}

/* 教学优势 Bento */
.capability-section {
    overflow: hidden;
    background: #fff;
}

.capability-section::after {
    position: absolute;
    z-index: 0;
    top: 90px;
    right: -140px;
    width: 370px;
    height: 370px;
    content: "";
    opacity: .42;
    border: 1px dashed #cbd7ee;
    border-radius: 50%;
}

.capability-section .container {
    position: relative;
    z-index: 1;
}

.capability-bento {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
}

.capability-card {
    display: flex;
    position: relative;
    overflow: hidden;
    min-height: 285px;
    padding: 30px;
    flex-direction: column;
    grid-column: span 5;
    border: 1px solid #dce4f1;
    border-radius: 26px;
    background: linear-gradient(145deg, #fff, #f6f8fc);
    box-shadow: 0 14px 38px rgba(29, 44, 85, .055), inset 0 1px 0 #fff;
}

.capability-card:nth-child(4n + 1),
.capability-card:nth-child(4n) {
    grid-column: span 7;
}

.capability-card::before {
    position: absolute;
    right: -1px;
    bottom: -1px;
    width: 130px;
    height: 130px;
    content: "";
    opacity: .25;
    background: radial-gradient(circle at 100% 100%, var(--cyan), transparent 67%);
    transition: opacity .3s ease, transform .4s var(--ease);
}

.capability-card::after {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 2px;
    content: "";
    opacity: 0;
    background: linear-gradient(90deg, var(--brand), var(--cyan), var(--violet));
    transition: opacity .3s ease;
}

.capability-card:hover {
    border-color: #bdcbed;
    box-shadow: 0 24px 60px rgba(29, 44, 85, .11), inset 0 1px 0 #fff;
}

.capability-card:hover::before {
    opacity: .5;
    transform: scale(1.25);
}

.capability-card:hover::after {
    opacity: 1;
}

.capability-card:nth-child(2) {
    color: #f1f5ff;
    border-color: rgba(136, 164, 224, .16);
    background: linear-gradient(145deg, #0a1630, #111f42);
    box-shadow: 0 20px 55px rgba(8, 20, 53, .2), inset 0 1px 0 rgba(255, 255, 255, .08);
}

.capability-card:nth-child(2) p,
.capability-card:nth-child(2) .capability-code {
    color: #8796b4;
}

.capability-card:nth-child(2) .capability-symbol {
    color: var(--cyan);
    border-color: rgba(66, 232, 255, .2);
    background: rgba(66, 232, 255, .07);
}

.capability-code {
    position: relative;
    z-index: 2;
    color: #8a96ad;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 9px;
    font-weight: 800;
    letter-spacing: .11em;
}

.capability-symbol {
    display: grid;
    position: absolute;
    top: 24px;
    right: 25px;
    width: 54px;
    height: 54px;
    place-items: center;
    color: var(--brand);
    border: 1px solid #dae3f6;
    border-radius: 17px;
    background: #eef3ff;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 15px;
    font-weight: 800;
}

.capability-card h3 {
    position: relative;
    z-index: 2;
    max-width: 520px;
    margin: auto 0 8px;
    font-size: clamp(22px, 2.5vw, 30px);
    line-height: 1.25;
    letter-spacing: -.025em;
}

.capability-card p {
    position: relative;
    z-index: 2;
    max-width: 570px;
    margin: 0;
    color: var(--muted);
}

.path-visual {
    display: flex;
    max-width: 560px;
    align-items: center;
    margin: 45px 0 28px;
    gap: 7px;
}

.path-visual span {
    display: grid;
    flex: 0 0 auto;
    width: 58px;
    height: 58px;
    place-items: center;
    color: var(--ink-soft);
    border: 1px solid #d7e0ef;
    border-radius: 18px;
    background: #fff;
    font-size: 12px;
    font-weight: 800;
    box-shadow: 0 10px 25px rgba(31, 51, 99, .06);
}

.path-visual span:nth-of-type(2) {
    color: #fff;
    border-color: var(--brand);
    background: var(--brand);
    box-shadow: 0 12px 28px rgba(31, 69, 252, .25);
}

.path-visual i {
    flex: 1 1 22px;
    height: 1px;
    background: repeating-linear-gradient(90deg, #bac8df 0 4px, transparent 4px 8px);
}

.code-bars {
    display: grid;
    width: 80%;
    margin: 20px 0 25px;
    gap: 8px;
}

.code-bars i {
    display: block;
    height: 6px;
    border-radius: 5px;
    background: linear-gradient(90deg, rgba(66, 232, 255, .65) 28%, rgba(139, 108, 255, .35) 28% 72%, rgba(255, 255, 255, .08) 72%);
}

.code-bars i:nth-child(2) {
    width: 72%;
    margin-left: 12%;
}

.code-bars i:nth-child(3) {
    width: 58%;
}

.feedback-wave {
    display: flex;
    height: 85px;
    align-items: end;
    margin: 34px 0 28px;
    gap: 8px;
}

.feedback-wave i {
    display: block;
    width: 13px;
    height: 32%;
    border-radius: 8px 8px 3px 3px;
    background: linear-gradient(180deg, var(--cyan), var(--brand));
}

.feedback-wave i:nth-child(2) { height: 52%; }
.feedback-wave i:nth-child(3) { height: 78%; }
.feedback-wave i:nth-child(4) { height: 63%; }
.feedback-wave i:nth-child(5) { height: 92%; background: linear-gradient(180deg, var(--lime), #55cdb1); }

.system-flow {
    display: flex;
    align-items: center;
    margin: 45px 0 31px;
    gap: 10px;
}

.system-flow b {
    padding: 9px 13px;
    color: var(--brand);
    border: 1px solid #d7e1f4;
    border-radius: 10px;
    background: #f2f5ff;
    font-size: 12px;
}

.system-flow span {
    color: #a4b0c5;
}

/* 课程卡片 */
.course-deck,
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.course-card,
.content-card {
    position: relative;
    overflow: hidden;
    border: 1px solid #dce4f0;
    border-radius: 24px;
    background: #fff;
    box-shadow: 0 13px 35px rgba(29, 44, 85, .065);
}

.course-card::after,
.content-card::after {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 3px;
    content: "";
    opacity: 0;
    background: linear-gradient(90deg, var(--brand), var(--cyan));
    transition: opacity .3s ease;
}

.course-card:hover,
.content-card:hover {
    border-color: #bdcae7;
    box-shadow: 0 25px 60px rgba(29, 44, 85, .13);
}

.course-card:hover::after,
.content-card:hover::after {
    opacity: 1;
}

.course-media {
    display: block;
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--navy-900);
}

.course-media img,
.content-card > img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform .6s var(--ease), filter .45s ease;
}

.course-card:hover .course-media img,
.content-card:hover > img {
    filter: saturate(1.06) contrast(1.02);
    transform: scale(1.055);
}

.course-filter {
    position: absolute;
    inset: 0;
    opacity: .48;
    background: linear-gradient(130deg, rgba(15, 30, 85, .05), rgba(31, 69, 252, .25));
    mix-blend-mode: multiply;
}

.course-card:nth-child(3n + 2) .course-filter { background: linear-gradient(130deg, rgba(64, 34, 112, .03), rgba(139, 108, 255, .31)); }
.course-card:nth-child(3n) .course-filter { background: linear-gradient(130deg, rgba(2, 76, 89, .02), rgba(14, 194, 206, .25)); }

.course-tag {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 6px 8px;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .28);
    border-radius: 7px;
    background: rgba(5, 12, 31, .42);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 8px;
    font-weight: 800;
    letter-spacing: .1em;
    backdrop-filter: blur(8px);
}

.course-open {
    display: grid;
    position: absolute;
    right: 15px;
    bottom: 15px;
    width: 39px;
    height: 39px;
    place-items: center;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .3);
    border-radius: 50%;
    background: rgba(5, 12, 31, .38);
    font-size: 15px;
    backdrop-filter: blur(8px);
    transition: background .25s ease, transform .25s ease;
}

.course-card:hover .course-open {
    background: var(--brand);
    transform: rotate(8deg) scale(1.07);
}

.course-placeholder,
.placeholder {
    display: grid;
    width: 100%;
    aspect-ratio: 16 / 10;
    place-items: center;
    align-content: center;
    color: #fff;
    background:
        linear-gradient(rgba(141, 169, 226, .09) 1px, transparent 1px),
        linear-gradient(90deg, rgba(141, 169, 226, .09) 1px, transparent 1px),
        linear-gradient(135deg, #0a1731, #17326f);
    background-size: 24px 24px, 24px 24px, auto;
}

.course-card:nth-child(3n + 2) .course-placeholder { background-color: #2b1b54; background-image: linear-gradient(rgba(188, 162, 255, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(188, 162, 255, .09) 1px, transparent 1px), linear-gradient(135deg, #17102e, #553590); }
.course-card:nth-child(3n) .course-placeholder { background-color: #07313c; background-image: linear-gradient(rgba(118, 241, 255, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(118, 241, 255, .09) 1px, transparent 1px), linear-gradient(135deg, #071e2d, #096d78); }

.course-placeholder b,
.placeholder {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 30px;
    font-weight: 900;
    letter-spacing: -.03em;
}

.course-placeholder span {
    margin-top: 4px;
    color: #91a3c7;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 8px;
    letter-spacing: .14em;
}

.course-body,
.card-body {
    padding: 25px 25px 27px;
}

.course-age,
.card-meta {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.course-age i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 0 4px rgba(31, 69, 252, .08);
}

.course-card:nth-child(3n + 2) .course-age i { background: var(--violet); }
.course-card:nth-child(3n) .course-age i { background: #0dbfc9; }

.course-body h3,
.card-body h2,
.card-body h3 {
    margin: 8px 0 9px;
    color: var(--ink);
    font-size: 23px;
    line-height: 1.3;
    letter-spacing: -.02em;
}

.course-body p,
.card-body p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.card-body a {
    color: var(--brand);
    font-weight: 800;
}

/* 学习系统产品区 */
.learning-stage {
    isolation: isolate;
    overflow: hidden;
    color: #fff;
    background:
        radial-gradient(circle at 8% 16%, rgba(139, 108, 255, .18), transparent 25%),
        radial-gradient(circle at 88% 75%, rgba(66, 232, 255, .13), transparent 26%),
        linear-gradient(145deg, #071126, #0a1530 58%, #101946);
}

.learning-stage::after {
    position: absolute;
    z-index: -1;
    right: -180px;
    bottom: -300px;
    width: 620px;
    height: 620px;
    content: "";
    border: 1px dashed rgba(127, 158, 230, .18);
    border-radius: 50%;
    box-shadow: inset 0 0 100px rgba(51, 82, 210, .07);
}

.learning-grid-lines {
    opacity: .12;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 40%, #000);
    mask-image: linear-gradient(90deg, transparent, #000 40%, #000);
}

.learning-layout {
    display: grid;
    position: relative;
    z-index: 2;
    grid-template-columns: .78fr 1.22fr;
    align-items: center;
    gap: clamp(52px, 6vw, 88px);
}

.learning-copy h2 {
    color: #f7faff;
}

.learning-copy > p {
    margin: 19px 0 0;
    color: #aebbd2;
    font-size: 17px;
}

.learning-features {
    padding: 0;
    margin: 32px 0 34px;
    list-style: none;
}

.learning-features li {
    display: grid;
    align-items: center;
    padding: 13px 0;
    grid-template-columns: 33px 1fr;
    gap: 12px;
    border-top: 1px solid rgba(142, 172, 231, .13);
}

.learning-features li > i {
    color: var(--cyan);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 10px;
    font-style: normal;
}

.learning-features span {
    display: grid;
}

.learning-features b {
    color: #eef4ff;
    font-size: 14px;
}

.learning-features small {
    color: #7484a3;
    font-size: 11px;
}

.learning-dashboard {
    position: relative;
    border: 1px solid rgba(143, 173, 235, .25);
    border-radius: 25px;
    background: rgba(8, 18, 42, .88);
    box-shadow: var(--shadow-dark), inset 0 1px 0 rgba(255, 255, 255, .08);
    backdrop-filter: blur(16px);
}

.dashboard-top {
    display: flex;
    height: 54px;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    border-bottom: 1px solid rgba(139, 169, 228, .15);
}

.dashboard-top > div {
    display: flex;
    align-items: center;
    gap: 8px;
}

.dashboard-top i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 12px rgba(31, 69, 252, .7);
}

.dashboard-top b {
    color: #dfe8fa;
    font-size: 11px;
}

.dashboard-top span,
.dashboard-top em {
    color: #5f708f;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 7px;
    font-style: normal;
    letter-spacing: .08em;
}

.dashboard-top em {
    color: var(--lime);
}

.dashboard-body {
    display: grid;
    min-height: 395px;
    grid-template-columns: 126px minmax(0, 1fr);
}

.dashboard-body aside {
    display: flex;
    padding: 18px 11px;
    gap: 7px;
    border-right: 1px solid rgba(139, 169, 228, .12);
    flex-direction: column;
}

.dashboard-body aside b {
    display: grid;
    width: 31px;
    height: 31px;
    margin: 0 7px 12px;
    place-items: center;
    color: var(--cyan);
    border: 1px solid rgba(66, 232, 255, .2);
    border-radius: 9px;
    background: rgba(66, 232, 255, .06);
}

.dashboard-body aside span {
    padding: 8px 9px;
    color: #687998;
    border-radius: 8px;
    font-size: 8px;
}

.dashboard-body aside .is-active {
    color: #dce7f9;
    background: linear-gradient(90deg, rgba(53, 88, 222, .28), rgba(53, 88, 222, .03));
}

.dashboard-main {
    min-width: 0;
    padding: 23px;
}

.dashboard-welcome {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 17px;
    border: 1px solid rgba(135, 166, 229, .16);
    border-radius: 13px;
    background: linear-gradient(110deg, rgba(38, 77, 213, .25), rgba(139, 108, 255, .09));
}

.dashboard-welcome span {
    display: grid;
}

.dashboard-welcome small,
.dashboard-modules span {
    color: var(--cyan);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 7px;
    letter-spacing: .1em;
}

.dashboard-welcome b {
    color: #e7edfa;
    font-size: 11px;
}

.dashboard-welcome > i {
    display: grid;
    width: 28px;
    height: 28px;
    place-items: center;
    color: #fff;
    border-radius: 9px;
    background: var(--brand);
    font-style: normal;
}

.dashboard-modules {
    display: grid;
    margin-top: 13px;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.dashboard-modules > div {
    display: flex;
    min-width: 0;
    min-height: 142px;
    padding: 13px;
    border: 1px solid rgba(135, 166, 229, .13);
    border-radius: 13px;
    background: rgba(255, 255, 255, .025);
    flex-direction: column;
}

.dashboard-modules > div:nth-child(2) span { color: #ae96ff; }
.dashboard-modules > div:nth-child(3) span { color: var(--lime); }

.dashboard-modules b {
    margin-top: 3px;
    color: #dce5f7;
    font-size: 10px;
}

.dashboard-modules > div > i {
    display: block;
    height: 6px;
    margin-top: 27px;
    overflow: hidden;
    border-radius: 5px;
    background: rgba(255, 255, 255, .07);
}

.dashboard-modules > div > i em {
    display: block;
    width: 72%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--brand), var(--cyan));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 1.1s .35s var(--ease);
}

.dashboard-modules > div:nth-child(3) > i em {
    width: 58%;
    background: linear-gradient(90deg, #54c4a8, var(--lime));
}

.learning-dashboard.is-visible .dashboard-modules em {
    transform: scaleX(1);
}

.dashboard-modules pre {
    display: grid;
    flex: 1;
    margin: 16px 0 0;
    place-items: center;
    color: #a695ff;
    border-radius: 8px;
    background: rgba(139, 108, 255, .06);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 11px;
}

.dashboard-modules small {
    margin-top: auto;
    color: #657694;
    font-size: 7px;
}

.dashboard-timeline {
    display: flex;
    align-items: center;
    margin-top: 14px;
    padding: 12px 14px;
    color: #70809d;
    border: 1px solid rgba(135, 166, 229, .11);
    border-radius: 11px;
    gap: 8px;
    font-size: 7px;
}

.dashboard-timeline > b {
    margin-right: auto;
    color: #aab7ce;
    font-size: 8px;
}

.dashboard-timeline span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.dashboard-timeline span i {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--cyan);
}

.dashboard-timeline em {
    width: 12px;
    height: 1px;
    background: #2c3d60;
}

.dashboard-float {
    display: grid;
    position: absolute;
    right: -27px;
    bottom: -28px;
    padding: 13px 16px 13px 50px;
    color: #e9f0fd;
    border: 1px solid rgba(143, 173, 235, .22);
    border-radius: 14px;
    background: rgba(10, 22, 49, .94);
    box-shadow: 0 22px 50px rgba(0, 4, 24, .35);
    animation: soft-float 5.8s -1.4s ease-in-out infinite;
}

.dashboard-float i {
    display: grid;
    position: absolute;
    top: 12px;
    left: 13px;
    width: 27px;
    height: 27px;
    place-items: center;
    color: #173d31;
    border-radius: 9px;
    background: var(--lime);
    font-style: normal;
    font-weight: 900;
}

.dashboard-float b {
    font-size: 10px;
}

.dashboard-float small {
    color: #71819e;
    font-size: 7px;
}

/* 成长证据 */
.growth-section {
    overflow: hidden;
    background: #fff;
}

.growth-evidence,
.growth-path {
    display: grid;
    position: relative;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.growth-evidence::before,
.growth-path::before {
    position: absolute;
    z-index: 0;
    top: 28px;
    right: 12%;
    left: 12%;
    height: 1px;
    content: "";
    background: repeating-linear-gradient(90deg, #b7c5df 0 6px, transparent 6px 12px);
}

.growth-evidence article,
.growth-evidence a,
.growth-path article {
    position: relative;
    z-index: 1;
    min-height: 230px;
    padding: 24px;
    border: 1px solid #dce4f0;
    border-radius: 22px;
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 12px 32px rgba(29, 44, 85, .055);
    transition: transform .28s var(--ease), box-shadow .28s ease, border-color .28s ease;
}

.growth-evidence article:hover,
.growth-evidence a:hover,
.growth-path article:hover {
    border-color: #bac9e9;
    box-shadow: 0 22px 48px rgba(29, 44, 85, .11);
    transform: translateY(-6px);
}

.growth-evidence article > span,
.growth-evidence a > span,
.growth-path b {
    display: grid;
    width: 54px;
    height: 54px;
    place-items: center;
    color: #fff;
    border: 6px solid #fff;
    border-radius: 18px;
    background: var(--brand);
    box-shadow: 0 0 0 1px #d4def0, 0 10px 26px rgba(31, 69, 252, .2);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 12px;
    font-weight: 850;
}

.growth-evidence > :nth-child(2) > span,
.growth-path > :nth-child(2) b { background: var(--violet); }
.growth-evidence > :nth-child(3) > span,
.growth-path > :nth-child(3) b { color: #0a3a40; background: var(--cyan); }
.growth-evidence > :nth-child(4) > span,
.growth-path > :nth-child(4) b { color: #20320f; background: var(--lime); }

.growth-evidence img {
    width: 54px;
    height: 54px;
    padding: 10px;
    object-fit: contain;
    border: 1px solid #d5dfef;
    border-radius: 18px;
    background: #f4f7ff;
}

.growth-evidence h3,
.growth-path h2 {
    margin: 44px 0 8px;
    font-size: 21px;
    line-height: 1.3;
}

.growth-evidence p,
.growth-path p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.growth-evidence a > i {
    position: absolute;
    top: 24px;
    right: 24px;
    color: var(--brand);
    font-style: normal;
}

.top-space {
    margin-top: 48px;
}

/* 资讯编辑布局 */
.editorial-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 18px;
}

.editorial-card {
    overflow: hidden;
    grid-column: span 4;
    border: 1px solid #dce4f0;
    border-radius: 22px;
    background: #fff;
    box-shadow: 0 12px 32px rgba(29, 44, 85, .055);
}

.editorial-card:first-child {
    grid-column: span 7;
    grid-row: span 2;
}

.editorial-card:nth-child(2),
.editorial-card:nth-child(3) {
    display: grid;
    grid-column: span 5;
    grid-template-columns: 165px minmax(0, 1fr);
}

.editorial-media {
    display: block;
    position: relative;
    overflow: hidden;
    min-height: 190px;
    background: linear-gradient(145deg, #0a1731, #153472);
}

.editorial-card:first-child .editorial-media {
    min-height: 325px;
}

.editorial-card:nth-child(2) .editorial-media,
.editorial-card:nth-child(3) .editorial-media {
    min-height: 100%;
}

.editorial-media img {
    width: 100%;
    height: 100%;
    min-height: inherit;
    object-fit: cover;
    transition: transform .6s var(--ease);
}

.editorial-card:hover .editorial-media img {
    transform: scale(1.045);
}

.editorial-media::after {
    position: absolute;
    inset: 0;
    content: "";
    background: linear-gradient(0deg, rgba(4, 9, 27, .23), transparent 50%);
}

.editorial-media > i {
    display: grid;
    position: absolute;
    z-index: 2;
    top: 14px;
    right: 14px;
    width: 36px;
    height: 36px;
    place-items: center;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .3);
    border-radius: 50%;
    background: rgba(4, 9, 27, .3);
    font-style: normal;
    backdrop-filter: blur(8px);
}

.editorial-placeholder {
    display: grid;
    position: absolute;
    inset: 0;
    place-items: center;
    align-content: center;
    color: rgba(255, 255, 255, .88);
    background-image: linear-gradient(rgba(129, 159, 221, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(129, 159, 221, .09) 1px, transparent 1px);
    background-size: 28px 28px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 22px;
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -.04em;
}

.editorial-card > div {
    padding: 22px;
}

.editorial-card time,
.news-card time {
    color: var(--muted);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 10px;
}

.editorial-card h3 {
    margin: 8px 0 9px;
    font-size: 20px;
    line-height: 1.35;
}

.editorial-card:first-child h3 {
    font-size: 28px;
}

.editorial-card p {
    display: -webkit-box;
    overflow: hidden;
    margin: 0;
    color: var(--muted);
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    font-size: 13px;
}

.editorial-link {
    display: inline-flex;
    margin-top: 17px;
    gap: 7px;
    color: var(--brand);
    font-size: 13px;
    font-weight: 800;
}

.editorial-card:nth-child(2) p,
.editorial-card:nth-child(3) p,
.editorial-card:nth-child(2) .editorial-link,
.editorial-card:nth-child(3) .editorial-link {
    display: none;
}

/* 自定义 CMS 楼层 */
.custom-grid,
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.custom-grid article,
.feature-grid article,
.feature-link {
    position: relative;
    overflow: hidden;
    min-height: 210px;
    padding: 26px;
    border: 1px solid #dce4f0;
    border-radius: 22px;
    background: #fff;
    box-shadow: 0 12px 30px rgba(29, 44, 85, .05);
}

.custom-grid article > span {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: var(--brand);
    border-radius: 13px;
    background: #edf2ff;
    font-size: 22px;
}

.custom-grid h3,
.feature-grid h2,
.feature-grid h3,
.feature-link h3 {
    margin: 40px 0 9px;
    font-size: 20px;
    line-height: 1.35;
}

.custom-grid p,
.feature-grid p,
.feature-link p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.custom-cta {
    margin-top: 30px;
}

.feature-icon {
    display: grid;
    width: 52px;
    height: 52px;
    place-items: center;
    color: var(--brand);
    border-radius: 16px;
    background: var(--surface-blue);
    font-size: 24px;
}

.feature-link img {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

/* 收尾行动区 */
.cta-section {
    overflow: hidden;
    padding-top: 54px;
    background: #fff;
}

.cta-orbit {
    display: grid;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    min-height: 350px;
    align-items: center;
    padding: 64px 64px 64px 330px;
    color: #fff;
    grid-template-columns: 1fr auto;
    gap: 42px;
    border: 1px solid rgba(131, 164, 231, .22);
    border-radius: 34px;
    background:
        radial-gradient(circle at 18% 50%, rgba(66, 232, 255, .16), transparent 25%),
        radial-gradient(circle at 72% 10%, rgba(139, 108, 255, .2), transparent 28%),
        linear-gradient(135deg, #071126, #0b1732 60%, #111946);
    box-shadow: 0 35px 90px rgba(7, 17, 38, .22), inset 0 1px 0 rgba(255, 255, 255, .08);
}

.cta-orbit::before {
    position: absolute;
    z-index: -1;
    inset: 0;
    content: "";
    opacity: .15;
    background-image: linear-gradient(rgba(130, 160, 222, .25) 1px, transparent 1px), linear-gradient(90deg, rgba(130, 160, 222, .25) 1px, transparent 1px);
    background-size: 42px 42px;
    -webkit-mask-image: linear-gradient(90deg, #000, transparent 70%);
    mask-image: linear-gradient(90deg, #000, transparent 70%);
}

.cta-orbit-visual {
    position: absolute;
    top: 50%;
    left: 54px;
    width: 220px;
    height: 220px;
    border: 1px dashed rgba(113, 154, 235, .28);
    border-radius: 50%;
    transform: translateY(-50%);
    animation: orbit-spin 24s linear infinite;
}

.cta-orbit-visual::before,
.cta-orbit-visual::after {
    position: absolute;
    content: "";
    border: 1px solid rgba(111, 150, 230, .2);
    border-radius: 50%;
}

.cta-orbit-visual::before { inset: 30px; }
.cta-orbit-visual::after { inset: 65px; background: rgba(31, 69, 252, .1); box-shadow: inset 0 0 24px rgba(66, 232, 255, .08); }

.cta-orbit-visual i {
    position: absolute;
    width: 10px;
    height: 10px;
    border: 2px solid var(--cyan);
    border-radius: 50%;
    background: var(--navy-900);
    box-shadow: 0 0 18px rgba(66, 232, 255, .65);
}

.cta-orbit-visual i:first-child { top: -5px; left: 48%; }
.cta-orbit-visual i:nth-child(2) { right: 12px; bottom: 37px; border-color: var(--violet); }
.cta-orbit-visual i:nth-child(3) { bottom: 18px; left: 25px; border-color: var(--lime); }

.cta-orbit-visual b {
    position: absolute;
    z-index: 2;
    top: 50%;
    left: 50%;
    color: #fff;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    letter-spacing: .08em;
    transform: translate(-50%, -50%) rotate(-1turn);
    animation: orbit-spin-reverse 24s linear infinite;
}

.cta-copy h2 {
    color: #f7faff;
    font-size: clamp(38px, 4.2vw, 54px);
}

.cta-copy p {
    margin: 16px 0 0;
    color: #9eacc5;
}

.cta-actions {
    display: grid;
    justify-items: center;
    gap: 14px;
}

.cta-note {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: #71819f;
    font-size: 11px;
}

.cta-note i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 10px rgba(185, 247, 92, .55);
}

/* 全站内页 */
.page-hero,
.article-header {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: 92px 0 98px;
    color: #fff;
    background:
        radial-gradient(circle at 78% 22%, rgba(66, 232, 255, .12), transparent 26%),
        radial-gradient(circle at 18% 88%, rgba(139, 108, 255, .13), transparent 28%),
        linear-gradient(140deg, #071126, #0a1731 62%, #111944);
}

.page-hero::before,
.article-header::before {
    position: absolute;
    z-index: -1;
    inset: 0;
    content: "";
    opacity: .18;
    background-image: linear-gradient(rgba(132, 164, 227, .22) 1px, transparent 1px), linear-gradient(90deg, rgba(132, 164, 227, .22) 1px, transparent 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(circle at 72% 35%, #000, transparent 68%);
    mask-image: radial-gradient(circle at 72% 35%, #000, transparent 68%);
}

.page-hero::after,
.article-header::after {
    position: absolute;
    z-index: -1;
    right: -90px;
    bottom: -185px;
    width: 410px;
    height: 410px;
    content: "";
    border: 1px dashed rgba(127, 159, 225, .2);
    border-radius: 50%;
}

.page-hero .eyebrow,
.article-header .eyebrow {
    color: var(--cyan);
}

.page-hero h1,
.article-header h1 {
    max-width: 900px;
    margin: 0;
    color: #f8fbff;
    font-size: clamp(45px, 5.2vw, 68px);
    font-weight: 880;
    line-height: 1.12;
    letter-spacing: -.05em;
    text-wrap: balance;
}

.page-hero p,
.article-header p {
    max-width: 760px;
    margin: 18px 0 0;
    color: #aebbd2;
    font-size: 17px;
}

.page-hero .btn {
    margin-top: 27px;
}

.detail-head {
    display: grid;
    align-items: center;
    grid-template-columns: 1fr 430px;
    gap: 58px;
}

.detail-head img {
    width: 100%;
    max-height: 340px;
    object-fit: cover;
    border: 1px solid rgba(158, 184, 239, .24);
    border-radius: 25px;
    box-shadow: var(--shadow-dark);
}

.article-layout {
    display: grid;
    padding-top: 70px;
    padding-bottom: 100px;
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: 55px;
}

.prose {
    color: #2b3752;
    font-size: 17px;
    line-height: 1.95;
}

.article-layout > .prose,
.article-header + .container.prose,
article.section .prose {
    padding: clamp(28px, 5vw, 54px);
    border: 1px solid #e0e6f1;
    border-radius: 26px;
    background: #fff;
    box-shadow: 0 18px 50px rgba(29, 44, 85, .075);
}

.prose h2,
.prose h3 {
    margin: 1.8em 0 .65em;
    color: var(--ink);
    line-height: 1.35;
}

.prose h2:first-child,
.prose h3:first-child {
    margin-top: 0;
}

.prose img {
    max-width: 100%;
    margin: 28px auto;
    border-radius: 17px;
}

.prose a {
    color: var(--brand);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-header {
    padding-bottom: 60px;
    text-align: center;
}

.article-header h1,
.article-header p {
    margin-inline: auto;
}

.article-header time {
    display: inline-block;
    margin-top: 20px;
    padding: 7px 10px;
    color: #91a0bc;
    border: 1px solid rgba(145, 175, 233, .18);
    border-radius: 8px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 10px;
}

.article-header + .container {
    position: relative;
    z-index: 2;
    margin-top: -24px;
    margin-bottom: 100px;
}

.detail-aside {
    position: sticky;
    top: 105px;
    align-self: start;
    padding: 27px;
    border: 1px solid #dce4f0;
    border-radius: 22px;
    background: linear-gradient(145deg, #fff, #f5f8ff);
    box-shadow: var(--shadow-sm);
}

.detail-aside h3 {
    margin-top: 0;
    font-size: 21px;
}

.detail-aside p {
    color: var(--muted);
    font-size: 14px;
}

.detail-aside .btn {
    display: flex;
    width: 100%;
    margin-top: 10px;
}

.news-list {
    display: grid;
    gap: 22px;
}

.news-card {
    display: grid;
    overflow: hidden;
    min-height: 240px;
    grid-template-columns: 330px 1fr;
    border: 1px solid #dce4f0;
    border-radius: 23px;
    background: #fff;
    box-shadow: 0 12px 32px rgba(29, 44, 85, .055);
    transition: transform .3s var(--ease), box-shadow .3s ease, border-color .3s ease;
}

.news-card:hover {
    border-color: #bccbe9;
    box-shadow: 0 24px 55px rgba(29, 44, 85, .11);
    transform: translateY(-4px);
}

.news-card img {
    width: 100%;
    height: 100%;
    min-height: 240px;
    object-fit: cover;
}

.news-card > div {
    padding: 30px;
}

.news-card h2,
.news-card h3 {
    margin: 8px 0 10px;
    font-size: 25px;
    line-height: 1.35;
}

.news-card p {
    margin: 0 0 16px;
    color: var(--muted);
}

.about-grid,
.form-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 430px;
    gap: 65px;
}

.about-grid > div:first-child {
    color: var(--ink-soft);
    font-size: 18px;
}

.about-grid > div:first-child h2,
.form-layout > div:first-child h2 {
    margin-top: 0;
    font-size: 36px;
    line-height: 1.25;
    letter-spacing: -.03em;
}

.about-card,
.trial-form,
.system-panel {
    position: relative;
    overflow: hidden;
    padding: 31px;
    border: 1px solid #dce4f0;
    border-radius: 24px;
    background: #fff;
    box-shadow: var(--shadow);
}

.about-card::before,
.trial-form::before {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 3px;
    content: "";
    background: linear-gradient(90deg, var(--brand), var(--cyan), var(--violet));
}

.about-card h3,
.trial-form h2 {
    margin-top: 0;
}

.step-list {
    padding: 0;
    margin: 0;
    list-style: none;
}

.step-list li {
    display: grid;
    position: relative;
    margin: 0;
    padding: 0 0 32px;
    grid-template-columns: 48px 1fr;
    gap: 16px;
}

.step-list li:not(:last-child)::after {
    position: absolute;
    top: 45px;
    bottom: 4px;
    left: 23px;
    width: 1px;
    content: "";
    background: repeating-linear-gradient(180deg, #b9c7df 0 5px, transparent 5px 9px);
}

.step-list b {
    display: grid;
    position: relative;
    z-index: 2;
    width: 48px;
    height: 48px;
    place-items: center;
    color: #fff;
    border-radius: 15px;
    background: linear-gradient(145deg, var(--brand), #1632cb);
    box-shadow: 0 10px 25px rgba(31, 69, 252, .22);
}

.step-list h3,
.step-list p {
    margin: 0;
}

.step-list h3 {
    padding-top: 3px;
    font-size: 18px;
}

.step-list p {
    color: var(--muted);
}

.trial-form label:not(.check) {
    display: block;
    margin: 17px 0;
    color: var(--ink-soft);
    font-size: 14px;
    font-weight: 750;
}

.trial-form label > span:first-child {
    color: #e34242;
}

.trial-form input:not([type="checkbox"]) {
    width: 100%;
    height: 50px;
    margin-top: 7px;
    padding: 0 14px;
    color: var(--ink);
    border: 1px solid #d4ddeb;
    border-radius: 11px;
    background: #f9fbff;
    outline: 0;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.trial-form input:not([type="checkbox"]):focus {
    border-color: var(--brand);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(31, 69, 252, .09);
}

.check {
    display: flex;
    align-items: flex-start;
    margin: 20px 0;
    gap: 10px;
    color: var(--muted);
    font-size: 12px;
}

.check input {
    flex: 0 0 auto;
    width: 16px;
    height: 16px;
    margin-top: 3px;
    accent-color: var(--brand);
}

.check a {
    color: var(--brand);
}

.trial-form .btn {
    width: 100%;
}

.privacy-note {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 11px;
}

.honeypot {
    position: absolute;
    left: -9999px;
}

.success-box {
    padding: 12px 14px;
    color: #146247;
    border: 1px solid #b8ebd7;
    border-radius: 10px;
    background: #eafff6;
}

.learning-page .system-panel {
    color: var(--ink);
    border-color: rgba(142, 173, 234, .22);
    background: rgba(255, 255, 255, .96);
    box-shadow: var(--shadow-dark);
}

.system-panel > div:first-child {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.system-panel > div:first-child span {
    color: var(--muted);
    font-size: 12px;
}

.system-panel ul {
    padding: 0;
    margin: 23px 0 0;
    list-style: none;
}

.system-panel li {
    display: flex;
    align-items: center;
    padding: 13px 0;
    border-top: 1px solid var(--line);
}

.system-panel li span {
    display: grid;
    width: 30px;
    height: 30px;
    margin-right: 10px;
    place-items: center;
    color: var(--brand);
    border-radius: 9px;
    background: var(--surface-blue);
    font-size: 10px;
    font-weight: 800;
}

.progress {
    overflow: hidden;
    height: 8px;
    margin-top: 18px;
    border-radius: 8px;
    background: #e9eef7;
}

.progress i {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--brand), var(--cyan));
}

.empty-state {
    grid-column: 1 / -1;
    padding: 50px;
    color: var(--muted);
    border: 1px dashed #cbd6e8;
    border-radius: 21px;
    background: rgba(245, 248, 253, .8);
    text-align: center;
}

/* 页脚 */
.site-footer {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: 82px 0 92px;
    color: #8492ad;
    background: #05091a;
}

.site-footer::before {
    position: absolute;
    z-index: -2;
    inset: 0;
    content: "";
    opacity: .12;
    background-image: linear-gradient(rgba(128, 159, 220, .22) 1px, transparent 1px), linear-gradient(90deg, rgba(128, 159, 220, .22) 1px, transparent 1px);
    background-size: 52px 52px;
    -webkit-mask-image: linear-gradient(90deg, #000, transparent 82%);
    mask-image: linear-gradient(90deg, #000, transparent 82%);
}

.footer-orbit {
    position: absolute;
    z-index: -1;
    right: -220px;
    bottom: -360px;
    width: 660px;
    height: 660px;
    opacity: .32;
    border: 1px dashed rgba(104, 140, 214, .23);
    border-radius: 50%;
    box-shadow: inset 0 0 130px rgba(44, 79, 206, .08);
}

.footer-orbit::before,
.footer-orbit::after {
    position: absolute;
    content: "";
    border: 1px solid rgba(104, 140, 214, .17);
    border-radius: 50%;
}

.footer-orbit::before { inset: 80px; }
.footer-orbit::after { inset: 170px; }

.footer-grid {
    display: grid;
    grid-template-columns: 1.25fr .65fr 1fr;
    gap: 70px;
}

.footer-logo {
    display: inline-block;
    padding: 7px 11px;
    border: 1px solid rgba(137, 166, 225, .14);
    border-radius: 12px;
    background: rgba(255, 255, 255, .025);
}

.footer-logo img {
    width: 125px;
    height: 50px;
    object-fit: contain;
}

.footer-intro > p {
    max-width: 390px;
    margin: 21px 0;
    color: #a1aec4;
    font-size: 17px;
}

.footer-signals {
    display: flex;
    align-items: center;
    gap: 9px;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 9px;
    letter-spacing: .08em;
}

.footer-signals i {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #334566;
}

.footer-links > strong,
.footer-contact > strong {
    display: block;
    margin-bottom: 19px;
    color: #e9effb;
    font-size: 14px;
}

.footer-links nav {
    display: grid;
    gap: 10px;
}

.footer-links nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 160px;
    color: #8795ae;
    font-size: 13px;
    transition: color .2s ease, transform .2s ease;
}

.footer-links nav a:hover {
    color: var(--cyan);
    transform: translateX(3px);
}

.footer-links nav a span {
    opacity: .5;
}

.footer-contact p {
    margin: 7px 0;
    color: #8290a9;
    font-size: 13px;
}

.footer-contact > a:not(.footer-cta) {
    display: inline-block;
    margin: 6px 0;
    color: #e7eefb;
    font-size: 20px;
    font-weight: 800;
}

.footer-cta {
    display: inline-flex;
    align-items: center;
    margin-top: 16px;
    gap: 9px;
    color: var(--cyan);
    border-bottom: 1px solid rgba(66, 232, 255, .27);
    font-size: 13px;
    font-weight: 800;
}

.copyright {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 56px;
    padding-top: 23px;
    gap: 22px;
    color: #53627d;
    border-top: 1px solid rgba(134, 164, 222, .12);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 9px;
    letter-spacing: .04em;
}

.mobile-actions {
    display: none;
}

/* 仅在脚本增强模式下隐藏未进入视口的内容，脚本失败时仍完整可读。 */
[data-reveal] {
    opacity: 1;
    transform: none;
}

.motion-ready [data-reveal]:not(.is-visible) {
    opacity: 0;
    transform: translate3d(0, 28px, 0);
}

.motion-ready [data-reveal="scale"]:not(.is-visible) {
    transform: translate3d(0, 20px, 0) scale(.965);
}

.motion-ready [data-reveal] {
    transition: opacity .72s var(--ease), transform .72s var(--ease);
    transition-delay: var(--reveal-delay, 0ms);
}

.motion-ready [data-reveal]:focus-within {
    opacity: 1 !important;
    transform: none !important;
}

/* 动画只改变 transform 或 opacity，避免滚动时触发布局。 */
@keyframes orbit-spin {
    to { transform: rotate(1turn); }
}

@keyframes orbit-spin-reverse {
    to { transform: rotate(-1turn); }
}

@keyframes soft-float {
    50% { transform: translate3d(0, -9px, 0); }
}

@keyframes status-pulse {
    50% { opacity: .52; box-shadow: 0 0 0 7px rgba(185, 247, 92, .03), 0 0 18px rgba(185, 247, 92, .72); }
}

@keyframes cursor-blink {
    50% { opacity: 0; }
}

@keyframes stage-scan {
    from { transform: translateY(-120px); }
    to { transform: translateY(620px); }
}

@keyframes signal-scroll {
    to { transform: translateX(-50%); }
}

@keyframes aurora-drift-a {
    to { transform: translate3d(70px, 35px, 0) scale(1.08); }
}

@keyframes aurora-drift-b {
    to { transform: translate3d(-60px, -35px, 0) scale(.92); }
}

/* 响应式 */
@media (max-width: 1180px) {
    .brand-lab { display: none; }
    .site-nav { gap: 2px; }
    .site-nav a { padding-inline: 9px; font-size: 13px; }
    .nav-actions .btn { padding-inline: 15px; font-size: 13px; }
    .hero-grid { grid-template-columns: minmax(0, .9fr) minmax(470px, 1.1fr); gap: 44px; }
    .hero h1 { font-size: clamp(48px, 5.4vw, 68px); }
    .stage-body { grid-template-columns: 44px minmax(0, 1fr) 140px; }
    .cta-orbit { padding-left: 295px; }
    .cta-orbit-visual { left: 42px; width: 205px; height: 205px; }
}

@media (max-width: 1020px) {
    :root { --header-height: 72px; }
    .nav-toggle { display: inline-flex; margin-left: auto; }
    .site-nav {
        display: flex;
        position: fixed;
        z-index: 95;
        top: var(--header-height);
        right: 16px;
        left: 16px;
        visibility: hidden;
        overflow: auto;
        max-height: calc(100dvh - var(--header-height) - 22px);
        align-items: stretch;
        padding: 16px;
        margin: 0;
        gap: 4px;
        opacity: 0;
        border: 1px solid rgba(148, 176, 232, .22);
        border-radius: 18px;
        background: rgba(7, 17, 38, .98);
        box-shadow: 0 26px 70px rgba(0, 4, 23, .48);
        pointer-events: none;
        flex-direction: column;
        transform: translateY(-10px) scale(.985);
        transform-origin: top;
        transition: opacity .24s ease, transform .24s var(--ease), visibility .24s;
    }
    .site-nav.is-open { visibility: visible; opacity: 1; pointer-events: auto; transform: none; }
    .site-nav a { padding: 13px 14px; font-size: 15px; }
    .site-nav a::after { display: none; }
    .nav-actions { display: none; }
    .hero-lab { min-height: auto; padding: 78px 0 88px; }
    .hero-grid { grid-template-columns: 1fr; gap: 54px; }
    .hero-copy { max-width: 760px; }
    .hero-stage { width: min(680px, 100%); margin-inline: auto; }
    .learning-layout { grid-template-columns: 1fr; }
    .learning-copy { max-width: 690px; }
    .learning-dashboard { width: min(760px, 100%); margin-inline: auto; }
    .capability-card { grid-column: span 6 !important; }
    .custom-grid, .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .growth-evidence, .growth-path { grid-template-columns: repeat(2, 1fr); }
    .growth-evidence::before, .growth-path::before { display: none; }
    .editorial-card:first-child { grid-column: span 12; grid-row: auto; }
    .editorial-card:nth-child(2), .editorial-card:nth-child(3) { grid-column: span 6; grid-template-columns: 140px minmax(0, 1fr); }
    .editorial-card:nth-child(n + 4) { grid-column: span 6; }
    .cta-orbit { padding: 60px; grid-template-columns: 1fr auto; }
    .cta-orbit-visual { top: -90px; right: -40px; left: auto; opacity: .45; transform: none; }
    .detail-head, .article-layout, .about-grid, .form-layout { grid-template-columns: 1fr; }
    .detail-head img { max-width: 560px; }
    .detail-aside { position: static; }
    .about-card, .trial-form { width: min(620px, 100%); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 780px) {
    .container { width: min(var(--container), calc(100% - 34px)); }
    .section { padding: 84px 0; }
    .section-head { margin-bottom: 36px; }
    .section-head.split { display: block; }
    .section-head.split .text-link { margin-top: 20px; }
    .hero-lab { padding: 62px 0 76px; }
    .hero h1 { font-size: clamp(43px, 10vw, 59px); }
    .hero-lead { font-size: 16px; }
    .hero-proof { max-width: none; }
    .hero-stage { padding: 20px 0 27px; }
    .stage-window { min-height: 415px; }
    .stage-body { min-height: 367px; grid-template-columns: 44px minmax(0, 1fr); }
    .stage-status { display: none; }
    .orbit-system { width: 225px; height: 225px; }
    .stage-float-a { left: -7px; }
    .stage-float-b { right: -7px; }
    .signal-track { animation-duration: 42s; }
    .banner-card { min-width: 90%; }
    .capability-bento { gap: 15px; }
    .capability-card { min-height: 255px; padding: 25px; }
    .path-visual { margin-top: 40px; }
    .course-deck, .card-grid { grid-template-columns: repeat(2, 1fr); }
    .learning-dashboard { border-radius: 21px; }
    .dashboard-body { grid-template-columns: 105px minmax(0, 1fr); }
    .dashboard-main { padding: 17px; }
    .dashboard-modules { grid-template-columns: 1fr 1fr; }
    .dashboard-modules > div:last-child { display: none; }
    .dashboard-timeline { flex-wrap: wrap; }
    .dashboard-float { right: 12px; }
    .cta-orbit { min-height: 390px; padding: 54px; grid-template-columns: 1fr; }
    .cta-actions { justify-items: start; }
    .page-hero, .article-header { padding: 72px 0 78px; }
    .news-card { grid-template-columns: 240px 1fr; }
    .footer-grid { gap: 45px; }
}

@media (max-width: 620px) {
    :root { --header-height: 66px; }
    .container { width: min(var(--container), calc(100% - 28px)); }
    .brand img { width: 95px; height: 38px; }
    .nav-toggle { min-width: 45px; min-height: 42px; padding: 0 10px; }
    .nav-toggle-label { display: none; }
    .section { padding: 70px 0; }
    .section-head-tech { padding-left: 18px; }
    .section-head h2, .learning-copy h2, .cta-copy h2 { font-size: 35px; }
    .section-head p { font-size: 15px; }
    .hero-lab { padding: 52px 0 66px; }
    .lab-kicker { margin-bottom: 19px; padding: 7px 9px; font-size: 8px; }
    .lab-kicker span:last-child, .lab-kicker > i { display: none; }
    .hero h1 { font-size: 41px; line-height: 1.1; letter-spacing: -.045em; }
    .hero-actions { display: grid; grid-template-columns: 1fr; }
    .hero-actions .btn { width: 100%; }
    .hero-proof { margin-top: 31px; }
    .hero-proof > span { padding: 16px 6px 0 0; grid-template-columns: 1fr; }
    .hero-proof > span + span { padding-left: 10px; }
    .hero-proof i { grid-row: auto; }
    .hero-proof small { display: none; }
    .hero-stage { margin-top: 2px; }
    .stage-window { min-height: 350px; border-radius: 19px; }
    .stage-topbar { height: 42px; padding-inline: 11px; grid-template-columns: 1fr auto; }
    .stage-title { display: none; }
    .stage-body { min-height: 308px; grid-template-columns: 37px minmax(0, 1fr); }
    .stage-rail { gap: 10px; }
    .stage-rail i { width: 24px; height: 24px; font-size: 7px; }
    .orbit-system { top: 38px; width: 190px; height: 190px; }
    .orbit-core { width: 76px; height: 76px; border-radius: 25px; }
    .orbit-core b { font-size: 17px; }
    .mini-terminal { right: 9px; bottom: 9px; left: 9px; padding: 8px; font-size: 6.5px; }
    .stage-float { padding: 9px 11px; }
    .stage-float-a { top: 1px; left: -5px; }
    .stage-float-b { right: -3px; bottom: 0; }
    .stage-float span { font-size: 9px; }
    .stage-float b { font-size: 6px; }
    .signal-track { min-height: 52px; gap: 20px; font-size: 9px; }
    .banner-section { padding-top: 36px; }
    .banner-heading small { display: none; }
    .banner-card { min-width: 96%; border-radius: 18px; }
    .banner-card img { aspect-ratio: 2.35 / 1; }
    .banner-label { right: 15px; bottom: 13px; left: 15px; }
    .banner-label b { font-size: 14px; }
    .banner-label i { width: 32px; height: 32px; }
    .capability-bento { grid-template-columns: 1fr; }
    .capability-card { min-height: 250px; grid-column: 1 !important; }
    .path-visual { gap: 4px; }
    .path-visual span { width: 48px; height: 48px; border-radius: 15px; font-size: 10px; }
    .system-flow { gap: 5px; }
    .system-flow b { padding: 8px; font-size: 10px; }
    .course-deck, .card-grid { grid-template-columns: 1fr; }
    .course-body, .card-body { padding: 22px; }
    .learning-layout { gap: 45px; }
    .learning-features { margin-top: 25px; }
    .dashboard-body { min-height: 330px; grid-template-columns: 43px minmax(0, 1fr); }
    .dashboard-body aside { padding: 13px 6px; align-items: center; }
    .dashboard-body aside b { margin: 0 0 9px; }
    .dashboard-body aside span { overflow: hidden; width: 29px; height: 29px; padding: 7px; color: transparent; }
    .dashboard-body aside span::first-letter { color: #7486a7; }
    .dashboard-main { padding: 12px; }
    .dashboard-welcome { padding: 12px; }
    .dashboard-welcome b { font-size: 9px; }
    .dashboard-modules { gap: 7px; }
    .dashboard-modules > div { min-height: 128px; padding: 10px; }
    .dashboard-timeline { display: none; }
    .dashboard-float { right: 5px; bottom: -27px; }
    .growth-evidence, .growth-path, .custom-grid, .feature-grid { grid-template-columns: 1fr; }
    .growth-evidence article, .growth-evidence a, .growth-path article { min-height: 205px; }
    .growth-evidence h3, .growth-path h2 { margin-top: 32px; }
    .editorial-grid { display: grid; grid-template-columns: 1fr; }
    .editorial-card,
    .editorial-card:first-child,
    .editorial-card:nth-child(2),
    .editorial-card:nth-child(3),
    .editorial-card:nth-child(n + 4) { display: block; grid-column: 1; }
    .editorial-card:nth-child(2) .editorial-media,
    .editorial-card:nth-child(3) .editorial-media,
    .editorial-media { min-height: 190px; }
    .editorial-card:first-child .editorial-media { min-height: 240px; }
    .editorial-card:nth-child(2) p,
    .editorial-card:nth-child(3) p,
    .editorial-card:nth-child(2) .editorial-link,
    .editorial-card:nth-child(3) .editorial-link { display: -webkit-box; }
    .editorial-card:nth-child(2) .editorial-link,
    .editorial-card:nth-child(3) .editorial-link { display: inline-flex; }
    .editorial-card:first-child h3 { font-size: 23px; }
    .cta-section { padding-top: 35px; }
    .cta-orbit { min-height: 420px; padding: 42px 27px; border-radius: 26px; }
    .cta-orbit-visual { top: -105px; right: -75px; width: 210px; height: 210px; }
    .cta-actions { width: 100%; }
    .cta-actions .btn { width: 100%; }
    .page-hero, .article-header { padding: 60px 0 66px; }
    .page-hero h1, .article-header h1 { font-size: 40px; }
    .page-hero p, .article-header p { font-size: 15px; }
    .detail-head { gap: 35px; }
    .article-layout { padding-top: 45px; padding-bottom: 75px; gap: 35px; }
    .article-layout > .prose, .article-header + .container.prose, article.section .prose { padding: 24px 20px; border-radius: 20px; }
    .prose { font-size: 16px; }
    .news-card { display: block; }
    .news-card img { min-height: 0; aspect-ratio: 16 / 9; }
    .news-card > div { padding: 23px; }
    .news-card h2, .news-card h3 { font-size: 21px; }
    .about-grid, .form-layout { gap: 40px; }
    .about-grid > div:first-child h2, .form-layout > div:first-child h2 { font-size: 31px; }
    .about-card, .trial-form, .system-panel { padding: 24px; }
    .site-footer { padding: 68px 0 118px; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-contact { grid-column: auto; }
    .footer-intro > p { font-size: 15px; }
    .copyright { align-items: flex-start; flex-direction: column; margin-top: 42px; gap: 8px; }
    .mobile-actions {
        display: grid;
        position: fixed;
        z-index: 75;
        right: 12px;
        bottom: max(12px, env(safe-area-inset-bottom));
        left: 12px;
        overflow: hidden;
        grid-template-columns: 1fr 1fr;
        border: 1px solid rgba(155, 179, 228, .24);
        border-radius: 16px;
        background: rgba(8, 17, 39, .94);
        box-shadow: 0 18px 55px rgba(0, 5, 26, .4);
        backdrop-filter: blur(16px);
    }
    .mobile-actions a {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 54px;
        gap: 7px;
        color: #dce6f8;
        font-size: 13px;
        font-weight: 800;
    }
    .mobile-actions .primary { color: #fff; background: linear-gradient(135deg, #2854ff, #1536df); }
}

@media (max-width: 380px) {
    .hero h1 { font-size: 36px; }
    .hero-proof b { font-size: 12px; }
    .stage-float-a { display: none; }
    .path-visual span { width: 43px; height: 43px; }
    .capability-card { padding: 22px; }
}

/* 用户要求减弱动效时关闭所有装饰动画、视差和 3D 倾斜。 */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: .001ms !important;
        transition-delay: 0ms !important;
    }
    .motion-ready [data-reveal] { opacity: 1 !important; transform: none !important; }
    [data-tilt], [data-depth] { transform: none !important; }
    .signal-track { animation: none; transform: none; }
    .signal-strip { overflow-x: auto; }
    .stage-scan { display: none; }
}

@media (prefers-contrast: more) {
    :root { --muted: #4e5b76; --line: #bcc7d9; }
    .site-nav a, .hero-lead, .page-hero p, .learning-copy > p { color: #d1dbee; }
    .course-card, .content-card, .capability-card, .editorial-card, .news-card { border-width: 2px; }
}